Hurd, Paul David,  1921- <br/><br/>
The bee family Oxaeidaewith a revision of the north American species Hymeno tera :  Apoidea / 
Paul D. Hurd, Jr. and E. Gorton Linsley 
 - Washington :  Smithsonian Institution Press,  1976 
 - iii, 75 p. :  ill. ;  26 cm. 
 - Smithsonian contributions to zoology ;  no. 220. .
<br/><br/>Bibliography : p. 220. 
<br/><br/><label>LCCN: </label>75-619293 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oxaeidae<br/>Insects--Classification<br/>Insects--North America